Juggling circles
Circles are a juggling tool. They have the size of a large plate and have a hole in the middle to be worn: the radius of the hole is about 5cm smaller than that of the rim itself. They are used like balls but the game is more complex for three reasons: first, they are bigger and so the collision between one circle and the other is more likely; Secondly, to be kept in axis must be rotated and third, they are usually made of rigid plastic and hence can hurt if they fall on the juggler. If used in the open air, however, they are heavily influenced by the wind due to their greater surface area than the balls. For this reason, there is an outdoor variation with holes along the entire surface.
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